Effects of inhaled hypertonic (7%) saline on lung function test in preschool children with cystic fibrosis: Results of a crossover, randomized clinical trial
Background:This crossover, randomized, double-blind study (conducted over a 32-week period) was performed todetermine, in clinically stable Cystic fibrosis (CF) preschool children: the effects of 7% inhaled hypertonic saline onspirometry and interrupter resistance technique (Rint), and the possible side effects.Methods:Twelve CF children (6M, mean age ± SD: 5.7 ± 0.8 yrs) were enrolled and randomly assigned to receivehypertonic saline (HS-4 ml 7% sodium chloride), or normal saline (NS-0.9% sodium chloride) twice a day.